The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 10, 2019
Filed:
Jan. 15, 2016
Dowa Metaltech Co., Ltd., Tokyo, JP;
Shunki Sadamori, Tokyo, JP;
Hiroshi Miyazawa, Tokyo, JP;
Masafumi Ogata, Tokyo, JP;
Keisuke Shinohara, Tokyo, JP;
DOWA METALTECH CO., LTD., Tokyo, JP;
Abstract
A silver-plated product is produced by forming a surface layer of silver on a base material by electroplating at a liquid temperature of 10 to 35° C. and a current density of 3 to 15 A/dmin a silver plating solution so as to satisfy (32.6x−300)≤y≤(32.6x+200) assuming that a product of a concentration of potassium cyanide in the silver plating solution and a current density is y (g·A/L·dm) and that a liquid temperature of the silver plating solution is x (° C.), the silver plating solution containing 80 to 110 g/L of silver, 70 to 160 g/L of potassium cyanide and 55 to 70 mg/L of selenium.